On July 6th – 8th, 2021, the National Technical Committee of Auto Standardization (SAC/TC 114) successfully held the 7th International Symposium on Intelligent and Connected Vehicles Technologies, Standards and Regulations (ICV2021) in Cangzhou, Hebei. The SparkLink Alliance demonstrated its standard achievements and prototype systems.
Being committed to implementing the important documents, such as the Guide on National IoV Industry Standard System Construction (Intelligent and Connected Vehicles), Innovative Development Strategy on Intelligent Vehicles, and Action Plan of IoV (Intelligent and Connected Vehicles) Industry Development, giving full play to the role of standards and regulations in supporting and facilitating the industry, and demonstrating the progress and achievements of the standardization of intelligent and connected vehicles, ICV2021 has been one of the most influential international events in the technical field.
During the symposium, SparkLink Alliance demonstrated the SparkLink 1.0-based prototype Demo systems, including the SparkLink Ultra-Short Latency Test System and SparkLink ANC System. Guo Huanxin, Inspector of Standard Technology Management Division, State Administration for Market Regulation, visited the prototypes.
1. SparkLink Ultra-Short Latency Test System
The SparkLink ultra-short latency test system tested the latency performance of SparkLink wireless transmission via the signal generator, SparkLink 1.0 prototype and oscilloscope. The test results show that the SparkLink end-to-end latency is about 100us, while the air interface transmission is 20us only. In the same conditions, the end-to-end latency of other wireless short-range technology is about 40ms and has obvious transmission vibrations and uncertainty. The system demonstrated the outstanding advantages of SparkLink technology in time delay and certainty transmission.
2. SparkLink ANC System
Jointly developed and demonstrated by CATARC, BAIC and Huawei, the SparkLink ANC system demonstrated the active offset of the SparkLink low latency features for interior noises. Real-world road noise information was rebuilt on the site. An ANC loop was established by using a pickup, a headrest loudspeaker, and an error microphone and the SparkLink low latency synchronous transmission features were used to guarantee the rapid certainty transmission of audio signals, verifying the technical feasibility of wireless ANC in the industry for the first time. The on-site real-time sound field tester shows that the SparkLink ANC system can lower low frequency noises by 5dB on average, the noise reduction effects are similar to those made by wired ANC systems in the same conditions.
The prototype Demo fully demonstrated the performance advantages of SparkLink technology in low latency, high reliability, accurate synchronization, and multiple concurrences, laying a solid foundation for its widespread applications in the smart automotive industry.
The SparkLink Alliance will make a promising SparkLink future by gathering industry forces!
